how to launch the GUI

README.md

@@ -1,2 +1,28 @@
 # ROS2QtGui
 Creating custom GUI with Qt and ROS2
+
+## How to Launch the GUI
+1. [Install ROS2 Foxy](https://index.ros.org/doc/ros2/Installation/Foxy/Linux-Install-Debians/). Make sure to setup your environment with:
+
+        source /opt/ros/foxy/setup.bash
+
+    > *NOTE:* You may want to add that line to your `~/.bashrc`
+
+2. Create a colcon workspace (*Note:* Feel free to change `~/ws_ros2` to whatever absolute path you want):
+
+        export COLCON_WS=~/ws_ros2/
+        mkdir -p $COLCON_WS/src
+
+3. Clone the required repositories and install any dependencies:
+
+        cd $COLCON_WS/src
+        git clone /~https://github.com/Abishalini/ROS2QtGui.git
+        rosdep install --ignore-src --from-paths . -y
+
+4. Configure and build the workspace
+
+        source $COLCON_WS/install/setup.bash
+
+5. Launch the GUI using the following command:
+
+        ros2 launch qtros2 gui.launch